"I wanted to tell the story of their relationship and invite people to be surprised and impressed in the same ways that I was." Leah Mahan talks about her motivations for making "Sweet Old Song." Find out more behind the lens. >

Howard Armstrong was the subject of 1988 P.O.V. film by Terry Zwigoff entitled "Louie Bluie." Leah Mahan explains how to build new and original approaches to a topic or a person already covered in previous documentary work. >

Viewers sent in questions for Leah Mahan, the filmmaker of "Sweet Old Song." Here she responds to a selection of questions about why she chose Howard and Barbara for her film, why she decided to leave out much of Howard's life from the film and more. >